Christina is an East Berliner who was born in the GDR, a socialist republic that no longer exists. She danced on the Wall in 1989, and closely observed the restructuring of Germany and the frantic urban transformation of Berlin. At the European University Viadrina in Frankfurt (Oder) she earned an MA in cultural history and comparative social sciences, particularly the ideology-based history of the twentieth century. Her dissertation was on a more contemporary subject of "The Economic Impact of the Contemporary Art Scene on the city of Berlin." She now works as an arts administrator, manages urban development initiatives, and since 2006 routinely walks guests through the eclectic and varied political, cultural, and architectural histories of the German capital and beyond.

Heribert is a native Berliner whose family history can be traced as far back as the founding of the city. An expert in urban history, for more than twenty years he has been guiding interested crowds through the German capital and the surrounding Mark Brandenburg, letting the stone witnesses of passing time tell their stories while he enthusiastically revives old lifestyles and tastes. He studied sociology, history, and cultural anthropology at the Freie Universität Berlin. His professional experience is varied and far-ranging, including working as a freelance trainer for communication and intercultural education since 1982, and guiding tours since 1986. In the West Berlin borough of Wannsee he runs with his wife two fine cafés (including at the Max Liebermann Villa Museum) and a gourmet delicatessen, and he is well-versed in fine cuisine. With an anecdote for just about every historical detail, Heribert is the consummate companion for any and all learning adventures in this city.

Roberta is a PhD candidate and a travel journalist with a Bachelor's degree in Social Communications and a Master's degree in World Heritage Studies. She is currently on her first year as a doctoral student at BTU Cottbus-Senftenberg where she researches the use of personal stories to interpret uncomfortable heritage. Her main study case is the victims of the Berlin Wall and how their stories are and can be used in the urban space to interpret the Wall's history. For her Master's thesis, she researched the communication and interpretation of the East Side Gallery, the longest remaining stretch of the Berlin Wall. She is the founder of gowalkthetalk.org, a blog and podcast about Berlin's everyday heritage.